Rare association of cutaneous vasculitis, IgA nephropathy and antiphospholipid antibody syndrome with tuberculous lymphadenitis

IgA nephropathy with leucocytoclastic vasculitis

Leucocytoclastic vasculitis is a rare type of allergic disease caused by immune complexes. IgA nephropathy is a glomerulopathy characterized by recurrent episodes of gross haematuria or microscopic haematuria and IgA deposition in the glomerular mesangial region. IgA nephropathy complicating leucocytoclastic vasculitis is rare documented. We present a case of IgA nephropathy in a 47-year-old woman with leucocytoclastic vasculitis and discuss the clinical and pathological data, aiming to promote the diagnosis and treatment of this specific clinical manifestation.

Tuberculosis-associated IgA nephropathy

Immunoglobulin A nephropathy (IgAN) is the most frequent pathological diagnosis of tuberculosis (TB)-associated glomerulonephritis. Diagnosing TB-associated IgAN (TB-IgAN) is difficult because of its non-specific and insidious symptoms. An inaccurate diagnosis of TB-IgAN could result in the spread of TB and reduced renal function. Haematuria and proteinuria in conjunction with TB should be assessed because of the potential for diagnosis of IgAN. Renal biopsy is important in securing an accurate diagnosis prior to initiating treatment. Detection of Mycobacterium tuberculosis DNA and assessment of early secreted antigenic target of 6 kDa in renal biopsy tissues may have great potential diagnostic value in patients with TB-IgAN. Anti-TB therapy can effectively alleviate TB and TB-IgAN.